The Thermo Scientific Handheld Orion Star A221 pH Portable Meter allows you to get the readings you want wherever you need to get them. It's waterproof and protected with an IP67 rated housing making it truely portable.
The handheld A221 is easy to use and features a large, graphic LCD display with backlight which displays pH/mV/RmV and temperature along with the time, electrode status and calibration points. Its plain language screen prompts, soft keys which update for easy selection and a multi-language interface means anyone can use this meter.
To avoid missing a reading, the AUTO-READ™ function locks in the stable reading on the display and the ready indicator alerts. It can also provide up to 5 point pH calibration with automatic recognition for USE/NIST and DIN buffers.
Up to 1000 data points with time and date stamp can be held by the A221s non-volatile memory. The data gathered can be easily transferred using the with the USB and RS232 ports and complimentary data analysis software. The same ports and software can also be used to update the meter software.
The portable A221 pH Meter is powered by four AA batteries which provide 800 hours of operation. A universal power adapter is also available to use AC power.
The A221 meter comes with a 3 year meter replacement warranty.
Manufactured by: Thermo Scientific
Model: Orion Star A221 pH Portable Meter
Mid range pH monitoring
|Range||-2.000 to 20.000|
|Resolution||0.1, 0.01, 0.001|
|Calibration points||Up to 5|
|Relative accuracy||±0.2 mV or ±0.05% of reading whichever is greater|
|EH ORP mode||Yes|
|Range||-5 to 105°C, 23 to 221°F|
|Offset calibration||1 point|
|Number of points||1000 with time and date stamp|
|Log function||Manual, automatic with AUTO-READ™|
|Log edit||Delete last reading or all|
|pH electrode||BNC, reference pin|
|ATC probe||8-pin mini-DIN|
|AC adapter||Optional - universal, 100-240 VAC|
|Battery power||Included - 4 AAs|
|Battery life||800 hrs|